a US Quarter coin but any size matching Euro coin will do the trick at least as well

OEM replacement reference 45600023

The 3" core technique is far beyond the louvered metal tubes

Chrome plated cast aluminum lifter block set

OEM replacement references 2944-40A

PS, 412 series shock set. 13". STD/Duty. Black 1980-08 Koppling/Gasvajrar a US Quarter coin butDescription 412 series shocks: Best value Progressive Suspension shock, great as stock replacement. Nitrogen charged double steel wall body. Multi staged velocity sensitive valving. Five position cam style preload adjustment. Note: Black 412 shocks may be supplied without lower cover. What are Progressive Suspension's 'Heavy Duty' shocks? If you are a lightweight rider with a lightweight passenger, STD Duty is probably your best choice, heavy duty